US8177873B2 - Separating device for separating out particles - Google Patents
Separating device for separating out particles Download PDFInfo
- Publication number
- US8177873B2 US8177873B2 US12/225,622 US22562207A US8177873B2 US 8177873 B2 US8177873 B2 US 8177873B2 US 22562207 A US22562207 A US 22562207A US 8177873 B2 US8177873 B2 US 8177873B2
- Authority
- US
- United States
- Prior art keywords
- region
- collecting vessel
- gas flow
- flow passage
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related, expires
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
Definitions
- the present invention relates to a separating device for separating out particles, especially liquid droplets, from a gas flow which contains the particles, with a flow passage which guides the gas flow and has at least one deflecting region for deflecting the gas flow, and with a collecting vessel for receiving the particles, wherein the flow passage furthermore has a branch for separating out the particles from the gas flow and which leads to the collecting vessel.
- Such separating devices can be used for separating out solid particles, such as dust or sand, and also especially for separating out particles in the form of liquid droplets.
- Separating devices for separating out liquid droplets are used for example in petrochemical refineries and especially in air separation plants for industrial gases.
- compressor stages which have radial compressor shafts are arranged in series. Separating devices of the aforementioned type can be connected between these compressor stages.
- compressed moist gas such as compressed moist air, which leaves a cooler of the upstream compressor stage, can be introduced into the separating device.
- compressed moist gas such as compressed moist air
- the gas flow follows the deflecting region of the flow passage.
- the liquid droplets on account of their inertia, cannot completely follow the deflecting region and as a result drift in the direction of the radially outwardly lying section of the flow passage.
- the liquid droplets should then reach the collecting vessel via the branch.
- German patent document DE 38 59 45 A separating out of solid or liquid components from gases or vapors is already known from German patent document DE 38 59 45, in which before entry into a compressor the gas which is laden with the foreign bodies is deflected and at the end of the deflection on the outer radius a depositing opening is provided, into which the components of the flow with higher density enter. Since in addition to these components which are to be separated out components of the gas which is to be compressed also pass through the depositing opening, the connecting line is provided with a recirculation passage so that the portions of the gas which are freed of the foreign bodies can enter the fluid flow again upstream.
- a disadvantage of the known arrangement is the lack of provision against congestion phenomenon in the line for carrying away the foreign matter.
- An object which forms the basis of the invention is to improve a separating device of the type mentioned in the introduction to the extent that an improved separation of the particles of the gas flow can be achieved without great additional expenditure.
- This object is achieved according to the invention with a generic-type separating device in which in addition to the branch a pipe leads to the collecting vessel and connects the collecting vessel to the flow passage in a fluid-directing manner.
- a fluid-directing connection exists on the one hand between the collecting vessel and the flow passage via the branch of the flow passage, and on the other hand via the pipe which also connects the collecting vessel to the flow passage in a fluid-directing manner.
- the solution according to the invention therefore makes it possible to avoid a gas build-up in the flow passage in the region of the branch in a cost-efficient manner.
- a suction effect is especially created in the collecting vessel as a result of the gas flow which is present in the flow passage. That is to say, the gas which flows with the particles into the collecting vessel is drawn in by the pipe on account of this suction effect. In this way, a gas build-up in the flow passage in the region of the branch is avoided and therefore the depositing of the particles into the collecting vessel is improved.
- the pipe leads both into the collecting vessel and into the flow passage.
- the previously described suction effect can therefore develop even better.
- the fluid-directing connection according to the invention of the collecting vessel to the flow passage by means of the pipe furthermore, the necessity for installing a bulky and cost-intensive suction device is avoided.
- the pipe connects the collecting vessel in a fluid-directing manner to a region of the flow passage which is located downstream with regard to the branch. That is to say, the pipe creates a fluid-directing connection to a region of the flow passage which the gas flow passes through only after flowing past the branch.
- the pipe can be especially compactly constructed. In this way, an especially good suction effect in the collecting vessel can be created.
- the vessel has a first wall section and also a second wall section which lies opposite this, wherein the branch leads into the collecting vessel on the first wall section and the pipe leads into the collecting vessel on the second wall section.
- the “ventilation flow” which is formed by means of the pipe has the same direction as the gas flow which enters the collecting vessel via the branch, as a result of which a back-pressure of the gas flow in the region of the branch can be especially efficiently avoided.
- the branch is arranged in the deflecting region, especially on the inner side on a radially outwardly lying wall section of the deflecting region.
- the particles can be especially efficiently separated out from the gas flow since these converge upon the radially outwardly lying wall section of the deflecting region on account of the change of direction of the flow passage in the deflecting region.
- the branch in this region the particles can be especially efficiently deposited into the collecting vessel.
- the flow passage furthermore has a second deflecting region which is arranged downstream with regard to the deflecting region, by means of which a change of direction of the gas flow is brought about which is opposite to a change of direction of the gas flow which is brought about by means of the first deflecting region.
- a fourth deflecting region adjoins the second deflecting region, by means of which a further change of direction of the gas flow is brought about, which in turn is opposite to the change of direction of the gas flow which is brought about by means of the second deflecting region.
- the first deflecting region of the flow passage describes essentially a U-shape, and especially brings about a deflection of the gas flow by about 180°.
- the particles which are to be separated out are pushed in large numbers onto the radially outwardly lying wall section of the first deflecting region and therefore by means of the branch can be especially efficiently deposited into the collecting vessel.
- the branch is arranged at a point of the deflecting region at which the direction of the flow passage, is rotated by at least 90° in relation to the direction of the flow passage at a start of the deflecting region on the inflow side. That is to say, the branch is arranged at a point of the deflecting region at which the deflecting region has already executed a curve of at least 90°. At this point, the particles are already arranged in large numbers on the radially outwardly lying wall section of the flow passage and as a result can be efficiently diverted into the collecting vessel.
- the flow passage furthermore has a third deflecting region which is arranged upstream with regard to the first deflecting region, by means of which a change of direction of the gas flow is brought about which is opposite to a change of direction of the gas flow which is brought about by means of the first deflecting region.
- the flow passage first of all has a third deflecting region which is curved in a specific direction, which the first deflecting region with an opposite direction of curvature, which includes the branch, adjoins.
- the particles therefore converge upon the radially outwardly lying wall section of the third deflecting region on account of the curvature of the third deflecting region.
- the particles cannot correspondingly follow the renewed deflection as a result of the first deflecting region which follows it, and, with the corresponding arrangement of the branch on the first deflecting region, are consequently efficiently received by the collecting vessel.
- the flow passage in a region which is located downstream with regard to the branch, has cross-sectional areas of essentially equal size along the flow passage at a plurality of points, especially at all the points, of the region.
- the gas flow after flowing past the branch, is carried forward in the flow passage with cross-sectional area which remains essentially constant. As a result, flow losses in the gas flow are largely avoided.
- FIG. 1 shows a sectional view of an exemplary embodiment of the separating device according to the invention.
- FIG. 2 shows the sectional view according to FIG. 1 with a diagrammatic representation of the distribution of water droplets which exists in the separating device during the operation of the separating device.
- the exemplary embodiment of the separating device 10 according to the invention which is shown in FIG. 1 comprises a flow passage 12 which extends between an inlet 14 and an outlet 16 .
- the inlet 14 can be connected to a cooler of a compressor stage, which is not diagrammatically shown, for example of an air separation plant, and during operation receives compressed moist gas in the form of compressed moist air which leaves the cooler.
- a further compressor stage of an air separation plant can be arranged at the outlet 16 .
- the compressed moist air contains a multiplicity of liquid droplets of different diameter.
- the flow passage 12 first of all has a third deflecting region 18 which adjoins the inlet 14 and is curved to the right, and brings about a change of direction of the flow passage 12 by about 60°.
- a first deflecting region 20 which describes essentially a U-shape and is curved to the left, adjoins this third deflecting region.
- a branch 26 which leads to a first wall section 28 a of a collecting vessel 28 or of a so-called water chamber, is provided on a radially outwardly lying wall section 21 of the first deflecting region 20 .
- the branch 26 is formed as a duct which constantly narrows in cross section and is arranged at a point of the first deflecting region 20 at which the direction of the flow passage 12 is rotated by more than 90° in relation to the direction of the flow passage 12 at the start 20 a of the first deflecting region 20 on the inflow side.
- the flow passage 12 has a right-hand curved second deflecting region 22 which adjoins the left-hand curved first deflecting region 20 and brings about a change of direction of the flow passage 12 by an angle of about 135°.
- a left-hand curved fourth deflecting region 24 in turn adjoins this second deflecting region and brings about a change of direction of the flow passage 12 by an angle of about 90°.
- the collecting vessel 28 is connected via a pipe 30 in a fluid-directing manner to the region 29 of the flow passage 12 which is located downstream with regard to the branch 26 .
- the pipe 30 on the one hand leads to a second wall section 28 b which lies opposite the first wall section 28 a of the collecting vessel 28 , and on the other hand leads to the flow passage 12 in a transition region between the second deflecting region 22 and the fourth deflecting region 24 .
- the pipe 30 serves for the automatic pressure balance of the collecting vessel 28 . As a result, an air build-up in the flow passage 12 in the region of the branch 26 is avoided.
- FIG. 2 shows a distribution of liquid droplets 32 in the form of water droplets in the gas or air flow which is directed through the separating device 10 .
- the liquid droplets 32 by means of the right-hand curved third deflecting region 18 , are first of all guided onto a radially outwardly lying wall section 19 of the third deflecting region 18 .
- the liquid droplets 32 are then guided onto the radially outwardly lying wall section 21 of the first deflecting region 20 of the flow passage 12 .
- the liquid droplets 32 in large numbers are deposited into the collecting vessel 28 via the branch 26 .
- the deposited liquid droplets 32 are primarily heavy liquid droplets 32 a with a large diameter.
- Light liquid droplets 32 b with a smaller diameter are entrained with the air flow into the second deflecting region 22 of the flow passage 12 .
- a recirculation region 34 is formed so that the liquid droplets 32 in a narrow flow path 36 above the recirculation region 34 enter the collecting vessel 28 at an acute angle.
- the liquid droplets 32 are deposited in the collecting vessel 28 in its lower section.
- the light liquid droplets 32 b which are entrained by the air flow, after flowing past the branch 26 , are pushed towards the radially inwardly lying wall section 25 of the fourth deflecting region 24 through the arrangement in series of the second deflecting region 22 and the fourth deflecting region 24 .
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separating Particles In Gases By Inertia (AREA)
- Cyclones (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06006325 | 2006-03-27 | ||
EP06006325A EP1839722B1 (de) | 2006-03-27 | 2006-03-27 | Abscheidevorrichtung zum Abscheiden von Teilchen |
EP06006325.2 | 2006-03-27 | ||
PCT/EP2007/051584 WO2007110284A1 (de) | 2006-03-27 | 2007-02-20 | Abscheidevorrichtung zum abscheiden von teilchen |
Publications (2)
Publication Number | Publication Date |
---|---|
US20110005179A1 US20110005179A1 (en) | 2011-01-13 |
US8177873B2 true US8177873B2 (en) | 2012-05-15 |
Family
ID=36648946
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/225,622 Expired - Fee Related US8177873B2 (en) | 2006-03-27 | 2007-02-20 | Separating device for separating out particles |
Country Status (8)
Country | Link |
---|---|
US (1) | US8177873B2 (de) |
EP (1) | EP1839722B1 (de) |
JP (1) | JP5506380B2 (de) |
CN (1) | CN101410163B (de) |
AT (1) | ATE476242T1 (de) |
DE (1) | DE502006007581D1 (de) |
ES (1) | ES2349418T3 (de) |
WO (1) | WO2007110284A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9108136B2 (en) | 2013-02-13 | 2015-08-18 | Camfil Usa, Inc. | Dust collector with spark arrester |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2092972A1 (de) | 2008-02-25 | 2009-08-26 | Siemens Aktiengesellschaft | Kompressoreinheit |
CN105664593B (zh) * | 2016-03-10 | 2017-12-19 | 华西能源工业股份有限公司 | 管材内壁吹灰收灰装置及其收灰箱 |
DE102017221309A1 (de) | 2017-11-28 | 2019-05-29 | Robert Bosch Gmbh | Gas-Flüssigkeitsabscheider zum Abscheiden von zumindest einem flüssigen Bestandteil von einem gasförmigen Bestandteil |
CN112945823A (zh) * | 2021-02-22 | 2021-06-11 | 浙江浙能嘉华发电有限公司 | 一种用于流场中的颗粒富集装置及富集方法 |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE385945C (de) | 1923-02-07 | 1923-12-15 | Aeg | Verfahren und Vorrichtung zur Abscheidung fester oder fluessiger Bestandteile aus Gasen oder Daempfen |
US1818994A (en) | 1924-10-11 | 1931-08-18 | Combustion Eng Corp | Dust collector |
US3729901A (en) * | 1971-07-20 | 1973-05-01 | D Jackson | Emission and pollutant recovery process and apparatus |
DE2256678A1 (de) | 1972-11-18 | 1974-05-22 | Koerting Ag | Fliehkraftabscheider |
US3989489A (en) | 1975-08-04 | 1976-11-02 | Shell Oil Company | Centrifugal apparatus for gas/liquid separation |
JPS56144720A (en) | 1980-04-14 | 1981-11-11 | Hitachi Ltd | Removing apparatus for dust flowing through pipe line |
DE3035828A1 (de) | 1980-09-23 | 1982-05-06 | Adolf Dipl.-Ing. 3060 Stadthagen Margraf | Zentrifugalabscheider, insbesondere fuer rauchgase |
US5004552A (en) * | 1990-06-14 | 1991-04-02 | Al Yazdi Ahmed M | Apparatus and method for separating water from crude oil |
WO1993011852A1 (en) | 1991-12-11 | 1993-06-24 | Environmental Protection Group Ltd. | Device for separating multiple-component fluids |
DE19651857C1 (de) | 1996-12-13 | 1998-02-19 | Evt Energie & Verfahrenstech | Vorrichtung zur Abscheidung von Feststoffen aus staubbeladenen Abgasen, insbesondere von Verbrennungsanlagen |
FR2857058A1 (fr) | 2003-07-03 | 2005-01-07 | Coutier Moulage Gen Ind | Dispositif de decantation d'eau pour ligne d'admission d'air d'un moteur a combustion interne |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53125671A (en) * | 1977-04-11 | 1978-11-02 | Fuji Photo Film Co Ltd | Recovery device |
JPS5579022A (en) * | 1978-12-07 | 1980-06-14 | Kawasaki Heavy Ind Ltd | Elbow separator |
JPH079704Y2 (ja) * | 1987-07-20 | 1995-03-08 | 日本ビクター株式会社 | 車載用低音域再生スピーカシステム |
IT1284925B1 (it) * | 1995-11-30 | 1998-05-28 | Rieter Ag Maschf | Dispositivo di aspirazione su una macchina tessile |
DE19613513A1 (de) * | 1996-04-04 | 1997-10-09 | Roehl Hager Hannelore | Verfahren zum Eingrenzen, Erfassen und Absaugen von Dunst, Staub oder dergleichen sowie Einrichtung zur Durchführung des Verfahrens |
JP2001329833A (ja) * | 2000-05-18 | 2001-11-30 | Nissan Motor Co Ltd | エンジンの排気浄化装置 |
JP3711028B2 (ja) * | 2001-02-20 | 2005-10-26 | 川崎重工業株式会社 | 異物除去構造を備えたガスタービンエンジン |
DE20207549U1 (de) * | 2002-05-08 | 2002-08-29 | Berbel Ablufttechnik Gmbh | Vorrichtung zum wirkungsvollen Abscheiden von Schwebteilchen aus einem Luftstrom |
-
2006
- 2006-03-27 ES ES06006325T patent/ES2349418T3/es active Active
- 2006-03-27 AT AT06006325T patent/ATE476242T1/de active
- 2006-03-27 EP EP06006325A patent/EP1839722B1/de not_active Not-in-force
- 2006-03-27 DE DE502006007581T patent/DE502006007581D1/de active Active
-
2007
- 2007-02-20 CN CN2007800108902A patent/CN101410163B/zh not_active Expired - Fee Related
- 2007-02-20 WO PCT/EP2007/051584 patent/WO2007110284A1/de active Application Filing
- 2007-02-20 JP JP2009501983A patent/JP5506380B2/ja not_active Expired - Fee Related
- 2007-02-20 US US12/225,622 patent/US8177873B2/en not_active Expired - Fee Related
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE385945C (de) | 1923-02-07 | 1923-12-15 | Aeg | Verfahren und Vorrichtung zur Abscheidung fester oder fluessiger Bestandteile aus Gasen oder Daempfen |
US1818994A (en) | 1924-10-11 | 1931-08-18 | Combustion Eng Corp | Dust collector |
US3729901A (en) * | 1971-07-20 | 1973-05-01 | D Jackson | Emission and pollutant recovery process and apparatus |
DE2256678A1 (de) | 1972-11-18 | 1974-05-22 | Koerting Ag | Fliehkraftabscheider |
US3989489A (en) | 1975-08-04 | 1976-11-02 | Shell Oil Company | Centrifugal apparatus for gas/liquid separation |
JPS56144720A (en) | 1980-04-14 | 1981-11-11 | Hitachi Ltd | Removing apparatus for dust flowing through pipe line |
DE3035828A1 (de) | 1980-09-23 | 1982-05-06 | Adolf Dipl.-Ing. 3060 Stadthagen Margraf | Zentrifugalabscheider, insbesondere fuer rauchgase |
US5004552A (en) * | 1990-06-14 | 1991-04-02 | Al Yazdi Ahmed M | Apparatus and method for separating water from crude oil |
WO1993011852A1 (en) | 1991-12-11 | 1993-06-24 | Environmental Protection Group Ltd. | Device for separating multiple-component fluids |
DE19651857C1 (de) | 1996-12-13 | 1998-02-19 | Evt Energie & Verfahrenstech | Vorrichtung zur Abscheidung von Feststoffen aus staubbeladenen Abgasen, insbesondere von Verbrennungsanlagen |
FR2857058A1 (fr) | 2003-07-03 | 2005-01-07 | Coutier Moulage Gen Ind | Dispositif de decantation d'eau pour ligne d'admission d'air d'un moteur a combustion interne |
Non-Patent Citations (1)
Title |
---|
Publication from Yamaguchi International Patent Office, Jul. 21, 2011, pp. 1-2, 1-4. |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9108136B2 (en) | 2013-02-13 | 2015-08-18 | Camfil Usa, Inc. | Dust collector with spark arrester |
Also Published As
Publication number | Publication date |
---|---|
JP2009531171A (ja) | 2009-09-03 |
JP5506380B2 (ja) | 2014-05-28 |
DE502006007581D1 (de) | 2010-09-16 |
CN101410163A (zh) | 2009-04-15 |
WO2007110284A1 (de) | 2007-10-04 |
EP1839722B1 (de) | 2010-08-04 |
CN101410163B (zh) | 2011-10-05 |
US20110005179A1 (en) | 2011-01-13 |
ES2349418T3 (es) | 2011-01-03 |
EP1839722A1 (de) | 2007-10-03 |
ATE476242T1 (de) | 2010-08-15 |
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Owner name: SIEMENS AKTIENGESELLSCHAFT, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KATHOL, ULRICH;NASS, DIETER;SCHLUETER, LARS;SIGNING DATES FROM 20081008 TO 20081013;REEL/FRAME:025050/0597 |
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